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samples/bpf: xdpsock: use skb Tx path for XDP_SKB
authorBjörn Töpel <bjorn.topel@intel.com>
Mon, 4 Jun 2018 12:06:01 +0000 (14:06 +0200)
committerDaniel Borkmann <daniel@iogearbox.net>
Tue, 5 Jun 2018 13:48:57 +0000 (15:48 +0200)
Make sure that XDP_SKB also uses the skb Tx path.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
samples/bpf/xdpsock_user.c

index 7494f60..d69c8d7 100644 (file)
@@ -75,6 +75,7 @@ static int opt_queue;
 static int opt_poll;
 static int opt_shared_packet_buffer;
 static int opt_interval = 1;
+static u32 opt_xdp_bind_flags;
 
 struct xdp_umem_uqueue {
        u32 cached_prod;
@@ -541,9 +542,12 @@ static struct xdpsock *xsk_configure(struct xdp_umem *umem)
        sxdp.sxdp_family = PF_XDP;
        sxdp.sxdp_ifindex = opt_ifindex;
        sxdp.sxdp_queue_id = opt_queue;
+
        if (shared) {
                sxdp.sxdp_flags = XDP_SHARED_UMEM;
                sxdp.sxdp_shared_umem_fd = umem->fd;
+       } else {
+               sxdp.sxdp_flags = opt_xdp_bind_flags;
        }
 
        lassert(bind(sfd, (struct sockaddr *)&sxdp, sizeof(sxdp)) == 0);
@@ -699,6 +703,7 @@ static void parse_command_line(int argc, char **argv)
                        break;
                case 'S':
                        opt_xdp_flags |= XDP_FLAGS_SKB_MODE;
+                       opt_xdp_bind_flags |= XDP_COPY;
                        break;
                case 'N':
                        opt_xdp_flags |= XDP_FLAGS_DRV_MODE;